References
- NIOSH . 1985 . NIOSH Manual of Analytical Methods , 3rd ed. , Cincinnati, OH : NIOSH . Fibers, Method 7400 (Revision 1)
- Asbestos International Association . 1979 . Reference Method for the Determination of Airborne Asbestos Fibre Concentrations at Workplaces by Light Microscopy , Recommended Technical Method No. 1 AIA Health and Safety Publication .
- Health and Safety Executive . 1984 . Method for the Determination of Hazardous Substances 39. Asbestos Fibres in Air , London : HSE, Occupational Medicine and Hygiene Laboratory .